AEG Washer Error Code E31

E31 indicates a pressure sensor calibration error. During a calibration water fill, the washer checks that the water level falls within a 0 to 60mm range as measured by the pressure sensor. If the level is outside that range and dry run protection is off, the machine stores the E31 code and stops. The most common cause is a closed or restricted water supply tap.

You should not continue using the washer until the E31 error is resolved. The machine has halted because it cannot confirm the correct water level, which means a wash cycle may not run properly. Running the machine in this state could result in a poor wash result or potential issues related to incorrect water levels.

If the fix is simply opening the water tap or cleaning a filter, there is no parts cost. Replacing a water inlet valve typically costs between 30 and 80 dollars for the part, plus labor if a technician is involved. A replacement pressure sensor generally ranges from 20 to 60 dollars. Total repair costs including a professional service call can range from 80 to 200 dollars depending on the fault and your location.

Start by making sure the water supply tap is fully open. Next, inspect the inlet hose for kinks and clean the mesh filter at the hose connection point on the back of the machine. If water supply is fine, check the small pressure hose that runs from the tub to the pressure sensor for blockages or loose connections. If these steps do not resolve the error, the water inlet valve or the pressure sensor itself may need testing and replacement.

Resetting the machine may temporarily clear the error display, but the code will return if the underlying problem is not fixed. The calibration check runs automatically, so if the water supply is restricted or the pressure sensor system has a fault, the E31 will reappear at the next cycle. Address the root cause before attempting a reset.